One step darker than the darkest color in the Perseus Gradient Set. Great for extending the size and scope of a gradient project.This colorway is a Wild Iris, meaning it is a truly unique, non-repeatable color. When this colorway is sold out, no more can be produced.Katahdin 437 A lighter fingering weight than our Yummy 2-Ply, Katahdin 437 is spun from the long, lustrous wool of Bluefaced Leicester sheep. BFL is a perfect canvas for Babs’ colors, giving the yarn a rich depth and slightly glossy finish. It's great for durable, fine-gauge socks, and lovely in crisp lacy shawlettes. Size: 437 yd / 3.5 oz (400m / 100g) skeins Content: 100% superwash Bluefaced Leicester wool Gauge: Light fingering weight. 8-10 stitches per inch knit on US 0-2, 7-8 stitches per inch crocheted on US A-D. Care Instructions: Machine wash gentle, dry flat.